GetModuleHandleExA

// KERNEL32.dll  (ANSI / -A)
#include <windows.h>

BOOL GetModuleHandleExA(
    DWORD dwFlags,
    LPCSTR lpModuleName,   // optional
    HMODULE* phModule
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetModuleHandleExA(
    dwFlags As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPStr)> lpModuleName As String,   ' LPCSTR optional
    phModule As IntPtr   ' HMODULE* out
) As Boolean
End Function

' dwFlags : DWORD
' lpModuleName : LPCSTR optional
' phModule : HMODULE* out
Declare PtrSafe Function GetModuleHandleExA Lib "kernel32" ( _
    ByVal dwFlags As Long, _
    ByVal lpModuleName As String, _
    ByVal phModule As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetModuleHandleExA = ctypes.windll.kernel32.GetModuleHandleExA
GetModuleHandleExA.restype = wintypes.BOOL
GetModuleHandleExA.argtypes = [
    wintypes.DWORD,  # dwFlags : DWORD
    wintypes.LPCSTR,  # lpModuleName : LPCSTR optional
    ctypes.c_void_p,  # phModule : HMODULE* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
GetModuleHandleExA = Fiddle::Function.new(
  lib['GetModuleHandleExA'],
  [
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    Fiddle::TYPE_VOIDP,  # lpModuleName : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # phModule : HMODULE* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn GetModuleHandleExA(
        dwFlags: u32,  // DWORD
        lpModuleName: *const u8,  // LPCSTR optional
        phModule: *mut *mut core::ffi::c_void  // HMODULE* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern bool GetModuleHandleExA(uint dwFlags, [MarshalAs(UnmanagedType.LPStr)] string lpModuleName, IntPtr phModule);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GetModuleHandleExA' -Namespace Win32 -PassThru
# $api::GetModuleHandleExA(dwFlags, lpModuleName, phModule)

#uselib "KERNEL32.dll"
#func global GetModuleHandleExA "GetModuleHandleExA" sptr, sptr, sptr
; GetModuleHandleExA dwFlags, lpModuleName, phModule   ; 戻り値は stat
; dwFlags : DWORD -> "sptr"
; lpModuleName : LPCSTR optional -> "sptr"
; phModule : HMODULE* out -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

#uselib "KERNEL32.dll"
#cfunc global GetModuleHandleExA "GetModuleHandleExA" int, str, sptr
; res = GetModuleHandleExA(dwFlags, lpModuleName, phModule)
; dwFlags : DWORD -> "int"
; lpModuleName : LPCSTR optional -> "str"
; phModule : HMODULE* out -> "sptr"

; BOOL GetModuleHandleExA(DWORD dwFlags, LPCSTR lpModuleName, HMODULE* phModule)
#uselib "KERNEL32.dll"
#cfunc global GetModuleHandleExA "GetModuleHandleExA" int, str, intptr
; res = GetModuleHandleExA(dwFlags, lpModuleName, phModule)
; dwFlags : DWORD -> "int"
; lpModuleName : LPCSTR optional -> "str"
; phModule : HMODULE* out -> "intptr"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procGetModuleHandleExA = kernel32.NewProc("GetModuleHandleExA")
)

// dwFlags (DWORD), lpModuleName (LPCSTR optional), phModule (HMODULE* out)
r1, _, err := procGetModuleHandleExA.Call(
	uintptr(dwFlags),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpModuleName))),
	uintptr(phModule),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetModuleHandleExA(
  dwFlags: DWORD;   // DWORD
  lpModuleName: PAnsiChar;   // LPCSTR optional
  phModule: Pointer   // HMODULE* out
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'GetModuleHandleExA';

result := DllCall("KERNEL32\GetModuleHandleExA"
    , "UInt", dwFlags   ; DWORD
    , "AStr", lpModuleName   ; LPCSTR optional
    , "Ptr", phModule   ; HMODULE* out
    , "Int")   ; return: BOOL

●GetModuleHandleExA(dwFlags, lpModuleName, phModule) = DLL("KERNEL32.dll", "bool GetModuleHandleExA(dword, char*, void*)")
# 呼び出し: GetModuleHandleExA(dwFlags, lpModuleName, phModule)
# dwFlags : DWORD -> "dword"
# lpModuleName : LPCSTR optional -> "char*"
# phModule : HMODULE* out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。